Asahi Kasei Corp. (TYO:3407) has decided to increase its production capacity for solution-polymerized styrene-butadiene rubber (S-SBR) for fuel efficient tires. The increase will take place at the company’s Singapore subsidiary Asahi Kasei Synthetic Rubber Singapore. Annual capacity will increase by 30,000 tons, raising the total production capacity in Singapore to 130,000 tons per year. The additional production of S-SBR is…